采用转化体系法去除含钠溶液中硫酸根的研究

Transformation system method is used to remove sodium sulfate in the solution of the research

在硫酸体系中,Na^+浓度与SO_4^(2-)浓度呈正相关,Na^+浓度高,SO_4^(2-)浓度也高,在有Na^+存在的情况下加入Ca(OH)_2不能去除SO_4^(2-)。在溶液中引入氯离子将钠盐溶液由原来的硫酸体系转化为氯化体系,则SO_4^(2-)的去除效果较好,SO_4^(2-)浓度高达21.9g/L的含钠溶液,通过转化法SO_4^(2-)浓度可降到1.0 g/L以下。

In sulfuric acid system,the concentration of Na~＋ and SO_4^（2-） concentration were positively correlated,high concentrations of Na~＋,SO_4^（2-） concentration is high,in the case of presence of Na~＋join Ca（OH）_2 can＇tremove SO_4^（2-）.The introduction of chloride ions in solution will sodium salt solution by the original system is transformed into sulfate chloride system,it is better to remove SO_4^（2-）,SO_4^（2-） concentration of 21.9g/L sodium solution,through reforming process SO_4^（2-） concentration can be dropped below 1.0g/L.